Use the Sum-To-Product Formulas to Rewrite the Sum or Difference

question 238

Multiple Choice

Use the sum-to-product formulas to rewrite the sum or difference as a product. ​ ​

• A)​
• B)​
• C)​ ​
• D)​

---

Definitions:

Chi-square Distribution

A probability distribution used in statistical significance tests, which is built on the sum of squared standard normal deviates.

Confidence Interval

A variety of numerical values, obtained from statistical analysis of a sample, which probably includes the value of an unseen population characteristic.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, calculated as the square root of the variance.

Variance

A measure of the dispersion of a set of data points in a population, showing how much the data diverge from the average value.